Fuses for the cigarette lighter, aux port and the fuses that control the clock and mileage as both reset every time engine turned off (overall mileage keeps correct tho just the miles since reset resets itself every time engine off and clock goes to 1900hrs
This wont be a blown fuse otherwise they wouldn't work at all - more likely to be either the battery getting low (try charging it) or needing a software update (check Ford website to see if 1 is available)
This site shows the fusebox location - https://fuse-box.info/ford/ford-fiesta-2002-2008-fuses-and-relays